Albert blatjvelt



PATENT FFICE.

ALBERT BLAUVELT, OF NEW YORK, N. Y.

AUTOMATIC FIRE-SPRINKLER.

SPECIFICATION forming part of Letters'Patent No. 423,591, dated March 18, 1890.

1 Application filed April 5, 1889. Serial No. 306,108. (No modeh) To all whom it may concern.-

Be it known that I, ALBERT BLAUVELT, of the city and State of New York, have invented an Improvement in Automatic Fire- Extinguishers, of which the following is a specification.

Before my invention automatic sprinklers had been made use of containing valves held to their seats by fusible material adapted to melt at such a low temperature as to open the sprinkler by the change of temperature of the atmosphere under the action of fire heat; but these sprinklers have been liable to injury in consequence of the deterioration of the solder made use of, and in other instances the solder has softened sufficiently to allowa small jet of Water to escape, and this water has cooled the solder, preventing the further opening of .the valve.

The objects of my invention are. to spray the fire-extinguishing'water freely in all directions, to easily control a heavy pressure of water and regulate its discharge, to easily close the sprinkler and fasten it after it has been set in action and the fusible part broken or lost, to be able to regrind the valve in position or to rotate it even while the waterpressure is on, to be able to easily renew the fusible fastening when deteriorated by age, and to avoid wetting the fusible fastening while the heat is softening or fusing it. I attain these objects by the construction shown, in which Figure 1 is a sectional view of my improved sprinkler. Fig. 2 is the same, showing a rose beneath in lieu of a deflector-flange. Fig. 3 is an external view of my sprinkler having a difierent form of body. Fig. 4 is a plan View of Fig. 3. Fig. 5 is a plan view of Fig. 1.

A is the body of the sprinkler; B, the differential valve having a stem continuing upward through the rose-cap R and havinga threaded nut E.

O is a lever reducing the strain held by the fusible link or clevis D. The fusible link D is shown in Fig. 2 as having parted and allowed the valve B to open.

'5 11 are washers, which may be varied in amount to regulate the drop of the valve.

The lower end of the stem at it passes through the lower rose or sprinkler to allow of raising ing or of leakage or after a fire, and if no fu-.

sible link is at hand the valve may be kept closed by screwing down the nut E far enough to make it tight. Fig. 2 illustrates how readily this closure may be effected.

Fusible metal of the quality employed in sprinklers often deteriorates and becomes altered in its properties and requires to be replaced. A new fusible fastening maybe put on my sprinkler at any time Without removing the same or relieving the water-pressure within it.

Thevalve-stem, nut, and washer are all revoluble as one piece and can be rotated to reseat the valve to correct accidental leakages without removing the sprinkler or the water-pressure within it. A slot may be cut across the lower end is of the valve-stem, Fig. 2, or in the under side of the valve, and a common screwdriver employed to turn the valve.

In Figs. 1 and 2 the connection for the water-pipe is represented as horizontal, and in Figs. 3 and at such connection is turned up vertically, and in these two last-named figures the lever c is bifurcated to pass at each side of the supply-pipe.

I claim as my invention- 1. The combination, with the case or body of a sprinkler and the differential valves 1), of the lever c and nut 6 upon the valve-stem, against which the lever acts, and the fusible link (I, for holding the lever in position with the valve closed, substantially as set forth.

2. In an automatic sprinkler, the case a, in combination with the differential valves b, the rose or sprinkler surrounding the valvestem, the adjustable nut e upon the upper end of the valve-stem, the lever c, acting against the nut e, and the link d, of fusible material, substantially as set forth.

3. The combination, with the case or body lever c and fusible link d, for holding the valve closed, and the removable washers 'i, for regulating the opening of the valve, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 1st day of April,

ALBERT BLAUVELT. Witnesses: V

M. F- CAHILL, .I. A. OULD. 

